A Breathtakingly Beautiful Vintage Unsigned Cartier Diamond & 18K Gold Enamel Cocktail Flower Ring in Orginal Cartier Box. Gorgeous enamel in colors of Bright Orange and Emerald Green.. This Beautiful and very Special Piece was obtained from a woman who owned many pieces of Tiffany, Cartier Jewelry. Unique construction underneath using a square nut & bolt which is a technique used in many other Cartier pieces I have seen. Size 5.5. Gorgeous!